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merge from dev-exp; better abandoned reclamation

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daan 2020-01-27 22:12:23 -08:00
commit b50bec463d
25 changed files with 661 additions and 337 deletions
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5
src/init.c
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@ -165,6 +165,7 @@ mi_stats_t _mi_stats_main = { MI_STATS_NULL };
Initialization and freeing of the thread local heaps
----------------------------------------------------------- */
// note: in x64 in release build `sizeof(mi_thread_data_t)` is under 4KiB (= OS page size).
typedef struct mi_thread_data_s {
mi_heap_t heap; // must come first due to cast in `_mi_heap_done`
mi_tld_t tld;
@ -179,12 +180,13 @@ static bool _mi_heap_init(void) {
mi_assert_internal(_mi_heap_default->tld->heap_backing == mi_get_default_heap());
}
else {
// use `_mi_os_alloc` to allocate directly from the OS
// use `_mi_os_alloc` to allocate directly from the OS
mi_thread_data_t* td = (mi_thread_data_t*)_mi_os_alloc(sizeof(mi_thread_data_t),&_mi_stats_main); // Todo: more efficient allocation?
if (td == NULL) {
_mi_error_message(ENOMEM, "failed to allocate thread local heap memory\n");
return false;
}
// OS allocated so already zero initialized
mi_tld_t* tld = &td->tld;
mi_heap_t* heap = &td->heap;
memcpy(tld, &tld_empty, sizeof(*tld));
@ -227,6 +229,7 @@ static bool _mi_heap_done(mi_heap_t* heap) {
// free if not the main thread
if (heap != &_mi_heap_main) {
mi_assert_internal(heap->tld->segments.count == 0);
_mi_os_free(heap, sizeof(mi_thread_data_t), &_mi_stats_main);
}
#if (MI_DEBUG > 0)